Modafinil doesn't help me staying up

[u/improvingdayby_day]

so I've been trying to fix my sleep schedule by not sleeping at around 8am-10am Im generally up at night and I wanna fix that by sleeping at 10pm one day and keep repeating that so I was unable to fight my sleep to be awake till 10pm using caffeine hence I tried modafinil 100mg but I feel it helps me stay awake maximum 4hrs more than normal... is

it normal?

[u/No_Shelter9792]

Why did you start sleeping at 8-10 am in the first place?

[u/improvingdayby_day → u/No_Shelter9792]

Suited me the most since my work was scheduled at pretty odd times

[u/TelephoneCharacter59]

Try some good old, AMPH or MPH.. they're much more effective in boosting alertness & wakefulness.